| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 - | 12 Oct 2021 | 07 Oct 2021 | 001-09235 |
| 4 | Open Document | Open Filing | FORM 4 - | 15 Jan 2021 | 13 Jan 2021 | 001-09235 |
| 4 | Open Document | Open Filing | FORM 4 - | 13 Oct 2020 | 08 Oct 2020 | 001-09235 |
| 4 | Open Document | Open Filing | FORM 4 - | 15 Oct 2019 | 10 Oct 2019 | 001-09235 |
| 4 | Open Document | Open Filing | FORM 4 - | 12 Dec 2018 | 11 Dec 2018 | 001-09235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2018 | 28 Sep 2018 | 000-53979 |
| 4 | Open Document | Open Filing | FORM 4 - | 15 Oct 2018 | 11 Oct 2018 | 001-09235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Sep 2018 | 13 Jun 2018 | 000-53979 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Oct 2017 | 29 Aug 2017 | 000-53979 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Oct 2017 | 24 May 2017 | 000-53979 |
| 4 | Open Document | Open Filing | FORM 4 - | 11 Oct 2017 | 10 Oct 2017 | 001-09235 |
| 4 | Open Document | Open Filing | FORM 4 - | 04 Oct 2017 | 03 Oct 2017 | 001-09235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Oct 2016 | 10 Oct 2016 | 001-09235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Oct 2015 | 09 Oct 2015 | 001-09235 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Oct 2014 | 09 Oct 2014 | 001-09235 |
| 3 | Open Document | Open Filing | 13 Feb 2014 | 07 Feb 2014 | 000-54447 |